Table 5-2 Port description for the backfeed protection card
Port Position Silk Screen
Signal Description
MFP (mains
feedback
protection)
MFP_NO
The MFP port is the signal port for the mains
backfeed protection. NO and COM are normally
open contacts. NC and COM are normally closed
contacts. When a backfeed occurs, the normally
open contacts are closed and the normally closed
contacts are open.
MFP_COM
MFP_NC
BFP (bypass
feedback
protection)
BFP_NO
The BFP port is the signal port for the bypass
backfeed protection. NO and COM are normally
open contacts. NC and COM are normally closed
contacts. When a backfeed occurs, the normally
open contacts are closed and the normally closed
contacts are open.
BFP_COM
BFP_NC
RSV
(reserved)
RSV_NO
Reserved
RSV_COM
RSV_NC
5.4 BCB Box
The BCB box controls the connection between battery strings and the UPS, and
supports overload protection, short circuit protection, and remote trip control.
UPS5000-H-(1200 kVA-1600 kVA)
User Manual (100 kVA Power Modules)
5 Optional Components
Issue 05 (2021-10-13)
Copyright © Huawei Technologies Co., Ltd.
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